dbx DriveRack 4800 User manual

8760 S. Sandy Pkwy.
Sandy, Utah 84070
Phone [phone]
Fax [phone]
Int’l Fax [phone]
[email protected]
http://www.dbxpro.com
A Harman International Company
18-0335 -A 4/05
®
Designed to provide incredible flexibility, sonic excellence and intuitive control for performance
applications, the DriveRack®4800 is the new flagship of the hugely successful DriveRack family. From
the powerful 96 kHz DSP engine and standard analog and digital I/O, to the QVGA display and
multiple control surfaces, the 4800 provides all the processing, flexibility and control necessary for both
installation and live use. The menu-based Wizard function enhances its capability by making the
DriveRack 4800 easier to use providing a menu based setup procedure including system configuration,
Auto-EQ, and an Advanced Feedback Suppression™(AFS™) Wizard.
The DriveRack 4800 is the next generation of the famous DriveRack family, and like its predecessor
it is engineered to provide “Everything you need between the mixer and the power amps”. In keep-
ing with this philosophy the 4800 includes four inputs and eight outputs with both analog and dig-
ital connectivity; a CobraNet option rounds it out offering greater flexibility for large installations.
The 96 kHz processing engine is capable of offering insert processing functions to customize the pro-
cessing path for your application, in addition to the standard system processing functions all with
extremely low latency and extended frequency response. From Signal Routing, EQ, and Bandpass
Filters, to classic dbx®Dynamics and Feedback Suppression all the processing is available and with
the sonic excellence that you would expect from the world's leading system processing manufacturer.
With all this processing power available, control is of paramount importance. The DriveRack pro-
vides a full color display to speed manual operation; this combined with intuitive front panel con-
trols, an easy to use GUI and optional wall panel controllers means that whether your application is
tour sound or installation, the DriveRack 4800 has what it takes. For more information please visit
www.driverack.com or www.dbxpro.com.
• 48 and 96 kHz operation
• Color QVGA Display
• 4 analog and AES/EBU inputs
• 8 analog and AES/EBU outputs
• Optional CobraNet I/O
• Optional Jensen®I/O Transformers
• Full Bandpass Filter, Crossover and
Routing Configurations with Bessel,
Butterworth, and Linkwitz-Riley filters
• 31-Band Graphic and 9-band
Parametric EQ on every input
• 6-band Parametric EQ on every output
• Loudspeaker Cluster and Driver
Alignment Delays
• Selectable DSP inserts on all inputs
and outputs including Classic dbx
Compression, Limiting and Advanced
Feedback Suppression among others
• Ethernet networking control
• dbx ZC wall panel control

Analog Inputs: (4)
Connectors: Female XLR
Type: Electronically balanced, RF filtered
Impedance: >50k ohms
Maximum Input Level: Software selectable for: +28, +26, +24, +22, +20, +18, +16, +14 dBu
CMRR: >40 dB typical, >55 dB at 1 kHz
Digital Inputs: (4) AES/EBU Channels
Connectors: Female XLR
Type: Transformer Isolated, RF filtered
Impedance: 110 ohms
RTA Input: (1) Analog
Connectors: Female XLR
Gain range: 20 dB to 50 dB in 10 dB increments
Analog Outputs: (8)
Connectors: Male XLR
Type: Electronically balanced, RF filtered
Impedance: 30 ohms
Max Output Level: Software selectable for: +24, +22, +20, +12, +8, +4 dBu
Digital Outputs: (8) AES/EBU Channels
Connectors: Male XLR
Type: Transformer Isolated, RF filtered
Impedance: 110 ohms
A/D Performance
Type: dbxType IV™ Conversion System
Dynamic Range: >113 dB unweighted,116 dB A-weighted
Type IV™ dynamic range: 126 dB with transient material,A-weighted,22 kHz BW
123 dB with transient material, unweighted,22 kHz BW
118 dB typical with program material,A-weighted,22 kHz BW
Sample Rate: 96 kHz
A/DWordlength: 24 bits
D/A Performance
Dynamic Range: 112 dB unweighted, 115 dB A-weighted
Sample Rate: 96 kHz
D/AWordlength: 24 bits
System Performance
Dynamic Range: 110 dB unweighted, 113 dB A-weighted
Internal Processing: 32 bit floating point
THD + Noise: 0.004% typical at +4 dBu, 1 kHz, 0 dB input gain
Frequency Response: 20 Hz- 20 kHz, +/-0.25 dB, <10 Hz- 50 kHz +0/-3dB @ 96kHz
Interchannel Crosstalk: <-85 dB at 1 kHz, 0 dB input gain
Processing
Pre EQType: One 31-band Graphic EQ on each input One EQ that is switchable
between 31-band Graphic and 9-band Parametric on each input
Range: +/- 15 dB
Input Insert Processing: Two selectable Insert Processing blocks per input
Type: Noise Gate,Compressor,Auto Gain Control,De-Esser,Sub-Harmonic
Synth, Notch filters and Advanced Feedback Suppression
Input Delay Length: Up to 682 mSec available
Routing/Mixing: 4-input mixer available at each output allowing any input to be sent or
mixed to any output
Output Insert Processing: Two selectable Insert Processing blocks per output
Type: Noise Gate,AutoWarmth®, Compressor,Auto Gain Control, Peak Limiter,
Sub-Harmonic Synth
X-Over Filter Configs: 1x1, 1x2, 1x3, 1x4, 1x5, 1x6, 1x7, 1x8, 2x2, 2x3, 2x4
2x5, 2x6, 2x7, 2x8, 3x3, 3x4, 3x6, 3x7, 4x4, 4x8
Types: Bessel 6, 12, 18, 24, 36 and 48 dB per Octave
Butterworth 6, 12, 18, 24, 36 and 48 dB per Octave
Linkwitz-Riley 12, 24, 36, and 48 dB per Octave
Polarity: Positive and Negative
Phase Control: 0 to -180 degrees in 5 degree increments
Output Delay Length: 1365 mSec shared between the outputs
Miscellaneous:
I/OTransformers: Optional, Jensen®JT-11 & JT-123-dbx
CobraNet®I/O: Optional
Control: Ethernet, RS-232, Optional dbx ZCWall Panels
Power Requirements: 100V to 240V 50/60Hz, 35 Watts
Dimensions: 3.5” x 19” x 12.15”
Weight: 11 lbs. (14 lbs. w/audio transformers)
ShippingWeight: 12.5 lbs. (15.5 lbs. w/audio transformers)
dbx engineers are constantly working to improve the quality of our products. Specifications are, therefore subject to change without notice. FOR MORE INFORMATION CONTACT:
dbx Professional Products 8760 S. Sandy Pkwy. Sandy, Utah 84070
Phone [phone] / Fax [phone]
[email protected] / http://www.dbxpro.com
A Harman International Company
The Professional’s Choice In Signal Processing™